7．this summer指“今年夏天”，象这样有this, that ,these, those,next等修饰的词作时间状语时前面不需要加介词。

5.all, both

all“全部，都”，指三者或三者以上事物；both“都”，指两者。

4．Hear的用法 hear-heard-heard

1)hear+that引导的从句。That可省略不用。如

I hear there’s an interesting film tonight.

2)hear sb do sth听见某人做某事。如

I hear her sing every day.

3)hear sb doing听见某人正在做某事。如

I hear him singing in the next room.

3.finish doing做完某事

2．　　　　　　　 Leave的用法

1)　 “leave+地点”表示“离开某地”如，When did you leave Changchun?

2)　 “leave for+地点”表示“离开去某地” 如She is leaving for London.

3)　 “leave+地点+for +地点”表示“离开某地去某地”

Why are you leaving Changchun for Wuhan?

1．　　　　　　　 现在进行时何时表示非进行意义

“be+现在分词”构成进行时态，表示动作正在发生或进行。但也有特殊情况

1)　 表示转移的动词leave,go, come, start等进行时态表将来的时候，时常伴有意图，安排或打算的含义。这种现在进行时比较生动，给人一种期待感，它常常表示最近或较近的将来。He is leaving fro London tomorrow.他明天就要去伦敦。

2)　 表示将来的现在进行时除用转移动词外，也可以用某些非转移动词。如，

When I grow up, I am joining the army.我长大要参军。

3)　 频度副词always, forever,continually等和进行时连用，带有一定的感情色彩， 泛指一切时间内所做的事情，或者表示客观事实。这种用法比较口语化，也比较生动。

The earth is always turning.地球转个不停。

11.a few有一点，表示肯定；后面接可数名词；few几乎没有，极少，表示否定，后面接可署名词；a little有一点，表示肯定，后面接不可数名词；little几乎没有，极少，表示否定，后面接不可数名词。

◆unit3 What are you doing for vacation?

目标语言：talk about future plane

重点句型：What are you doing for vacation? I’m visiting my grandmother.

　　　　　 What is she doing for vacation?　 She’s going camping.

　　 　　　Who are you going with? I’m going with my parents.

　　　　　 When is he going? He’s going on the 12^th.

　　　　　 How long are you staying? I’m staying for four days.

　　　　　 Where are you going for vacation? I am going to Italy.

　　　　　 How is the weather? It is fine.

　　　　　 Can I ask you some questions about your vacation plans? Sure.

重点词组：spend time with friends, go to the beach, go to sports camp,visit cousins, go bike riding, go sightseeing, talk walks, go fishing, rent videos, be famous for/as, think about, decide on, do something different, plan to do, go fishing, hope to do, forget to do/doing, wait to do, finish doing, ask sb. about sth.

知识点：

10．如果其后是明确的疾病名称就要用have，如果其后是表达身体状况的形容词，则用be。如 I have a sore throat. I am tired.

8． maybe, may be

maybe adv 或许，大概。其同义词为perhaps.

may be是情态动词+be动词的形式，作谓语，意思为“可能”。

[注意]由于may是情态动词，因此无人称和数的变化，也没有将来时态，即：将来时用现在时来表示。而maybe是副词，不能决定句子的时态，因此要根据具体情况，使用相应的时态。

9keep的用法

keep+形容词. Please keep quiet!

keep+副词　 Danger! Keep out!危险！不要靠近！

keep+介词　 Keep off the grass!勿践踏草坪！

[相关短语]keep at坚持下去　 keep in with保持友好关系

　　　　　　 keep in mind 记住　 keep on继续 keep up持续不停 keep up with赶上